Function countBy

src/webui/observer/assets.js:109–117

(items, keyOrFn)

}

function countBy(items, keyOrFn) {
  const counts = {};
  for (const item of items) {
    const key = typeof keyOrFn === 'function' ? keyOrFn(item) : item && item[keyOrFn];
    const safeKey = key || 'unknown';
    counts[safeKey] = (counts[safeKey] || 0) + 1;
  }
  return counts;
}

function filterText(items, q) {
  if (!q) return items;